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24-12-2017
Mathematics

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evaluate the function +(x)=19-y when x=-3

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24-12-2017

−3=19−y

Step 1: Simplify both sides of the equation.
−3=19−y
−3=19+−y
−3=−y+19
Step 2: Flip the equation.
−y+19=−3
Step 3: Subtract 19 from both sides.
−y+19−19=−3−19
−y=−22
Step 4: Divide both sides by -1.
−y/−1 = −22/−1
y=22
Answer: y=22

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